Specification:Cool hand spinner with a devil eye center and two bat wings.Great for anxiety, focusing, ADHD, autism, quitting bad habits, staying awake.Perfect fidget toy to keep your hands busy or to just play with.It feels nice in the hands and it is silent so you won't be bothering anybody.Usage:Hold spinner in one hand and use the other hand to spin it rapidly using small continuous strikes to keep it spinning indefinitely with practice.Spinners can be spun using one hand only using the fingers of one hand to stop and start spinning.Type: Hand SpinnerMaterial: Zinc AlloyBearing: High Speed Metal BearingFunction: RotatingRotation Time: 2-3 MinutesFeatures: Easy To Carry, Small, Simple, Discrete and FunSize: 60mm/2.36" (Approx.)Notes:Only for people above 16 years old. The hand spinner is very sharp, please be careful!The bearing of this product can not be washed with water! After playing a long time, soak the bearing with alcohol for cleaning.Due to the light and screen setting difference, the item's color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement.